Magnesium L-Threonate is a unique version of a naturally occurring micronutrient that passes through the blood-brain barrier more effectively than any other form of magnesium, ensuring you get more of this critical nutrient delivered to where it’s needed most—your brain. Magnesium L-Threonate can help increase synaptic density and promotes synaptic plasticity, which may help aid in cognitive function. Our Magnesium L-Threonate includes 2 grams of Magtein® per serving. Magnesium L-Threonate is a highly bioavailable magnesium that may support the calming and quieting of the brain which can aid in better quality sleep and focus.